$ git clone -n https://src.fedoraproject.org/rpms/mingw-bzip2.git /var/lib/mock/f41-build-1022371-18070/root/chroot_tmpdir/scmroot/mingw-bzip2
Cloning into '/var/lib/mock/f41-build-1022371-18070/root/chroot_tmpdir/scmroot/mingw-bzip2'...
$ git fetch origin d4c2879603fc39f0d4d91a942a54a47c21737ca3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-bzip2
 * [new ref]         d4c2879603fc39f0d4d91a942a54a47c21737ca3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d4c2879 Eliminate use of obsolete %patchN syntax (#2283636)